CN204689298U - A kind of oil storage type anti-falling safety device - Google Patents
A kind of oil storage type anti-falling safety device Download PDFInfo
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- CN204689298U CN204689298U CN201520246338.5U CN201520246338U CN204689298U CN 204689298 U CN204689298 U CN 204689298U CN 201520246338 U CN201520246338 U CN 201520246338U CN 204689298 U CN204689298 U CN 204689298U
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- oil
- end cap
- gear wheel
- safety device
- rolling bearing
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Abstract
The utility model relates to a kind of oil storage type anti-falling safety device, mainly comprises shell, inner casing, gear wheel shaft, centrifugal governor parts, end cap, top cover; Shell is the reducing type housing that inblock cast is shaped, and shell large end outer face is connected with end cap by flange arrangement, and small end outer face is connected with top cover, and inner casing is coaxially arranged in shell; It is characterized in that: between described gear wheel shaft rear support section and end cap, the first rolling bearing is set, the second rolling bearing is set between gear wheel shaft front support section and inner casing; And be also provided with at least one oil groove at the inside face of the first rolling bearing.The utility model has the advantage of: the oil groove holding quasi-hydrodynamic lubrication fat is set on rolling bearing, oil groove on rolling bearing and the oiling channel connection on end cap, and then realize later maintenance oiling, cannot oily bad Abnormal Sound when bringing running after avoiding oil starvation; And guarantee that anti-falling safety device normally runs for a long time.
Description
Technical field
The utility model relates to a kind of anti-falling safety device, particularly a kind of oil storage type anti-falling safety device.
Background technology
Anti-falling safety device is parts important on building hoist, and it be relied on to eliminate the generation of cage falling accident, ensures the life security of occupant, therefore to the predelivery test of anti-falling safety device and later maintenance all very strict.
In anti-falling safety device structure traditional at present, without oil storage function between its gear wheel shaft and lining of end cap central, although can from the oiling of gear wheel shaft end face, but not very convenient, therefore cannot guarantee that cannot to be axle and lining in the long period provide continuous lubrication, if once there is oil starvation, cannot oiling, can only dry friction send abnormal sound, the wearing and tearing of accelerating gear axle and lining between gear wheel shaft and lining, reduce service life.
Better in order to what make axle sleeve coordinate with the motion of axle, need to drive oil groove to reach lubrication at the outside face of gear wheel shaft and store up the object of grease, prevent axle and the lining phenomenon aggravating even to damage of wearing and tearing because oil starvation causes from occurring.Although this mode can solve the problem of oil starvation, also there is certain defect in it: due to needs turnning and milling annular oil groove on gear wheel shaft, the intensity of this annular oil groove to gear wheel shaft has a certain impact, and reduces the safety performance of anti-falling safety device.
Therefore research and develop and a kind ofly can either play lubricating effect to gear wheel shaft and lining to affect again the Novel anti-falling safety of safety performance imperative.
Utility model content
The technical problems to be solved in the utility model is to provide and does not a kind ofly affect the oil storage type anti-falling safety device of safety performance with lubrication system.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of oil storage type anti-falling safety device, mainly comprises shell, inner casing, gear wheel shaft, centrifugal governor parts, end cap, top cover; Shell is the reducing type housing that inblock cast is shaped, and shell large end outer face is connected with end cap by flange arrangement, and small end outer face is connected with top cover, and inner casing is coaxially arranged in shell; Gear wheel shaft is a stepped axis body coaxially arranged with inside and outside shell, its be divided into successively be vertically positioned at gear segment outside end cap, by be positioned at end cap central mounting hole rear support section, for installing the eccentric unit construction section of centrifugal governor parts and embedding the front support section at inner casing center; It is characterized in that: between described gear wheel shaft rear support section and end cap, the first rolling bearing is set, the second rolling bearing is set between gear wheel shaft front support section and inner casing; And be also provided with at least one oil groove at the inside face of the first rolling bearing.
Preferably, described oil groove is annular oil groove.
Preferably, described oil groove is roll bearing axle to the spiral channel-shaped extended along first.
Preferably, the central shaft hole both ends of the surface of described end cap are provided with stepped hole, in the annular chamber that this stepped hole and gear wheel shaft are formed, be inlaid with the oil sealing being positioned at the first rolling bearing both sides.
Preferably, the central shaft hole inwall of described end cap is drilled with one for the oil duct of later stage oiling, and the inner of this oil duct is communicated with oil groove, and outer end extends to external face.
Preferably, the sun gear shaft support end slope of described end cap bores an internal oil channel hole be communicated with central shaft hole inwall, bore an outer oil hole can installing oil nozzle at the outside face of end cap, arrange between this internal oil channel hole with outer oil hole one be communicated with both oiling tube.
The utility model has the advantage of:
(1) adopt rolling bearing and gear wheel shaft to carry out bearing fit, the solid lubricant layer that rolling bearing inwall can be utilized to imbed carries out self-lubricating;
(2) oil groove holding quasi-hydrodynamic lubrication fat is set on rolling bearing, the oil groove on rolling bearing and the oiling channel connection on end cap, and then realizes later maintenance oiling, cannot oily bad Abnormal Sound when bringing running after avoiding oil starvation; And guarantee that anti-falling safety device normally runs for a long time;
(3) the dual lubrication mechanism adopted in the utility model can either guarantee good failure-free lubrication between gear wheel shaft and rolling bearing, can reduce again on gear wheel shaft and open the impact of annular oil groove on the intensity of gear wheel shaft, improve safety performance.
Accompanying drawing explanation
Fig. 1 is the anti-falling safety device structural representation of the utility model first embodiment.
Fig. 2 is that first of the utility model first embodiment rolls bearing arrangement schematic diagram.
Fig. 3 is the utility model first embodiment oil injection structure schematic diagram.
Fig. 4 is that first of the utility model second embodiment rolls bearing arrangement schematic diagram.
Detailed description of the invention
embodiment one
Fig. 1 shows the anti-falling safety device structure of the present embodiment, and the present embodiment carries out principle parsing for typical anti-falling safety device structure, and anti-falling safety device mainly comprises shell 1, inner casing 2, gear wheel shaft 3, centrifugal governor parts 4, end cap 5, top cover 6.
The reducing type housing that shell 1 is shaped for inblock cast, it comprises the large end of shell and small end, and the large end of shell has one for holding the cone-shaped inner surface of inner casing, and shell small end is one for holding the tubular structure of disk spring; In shell 1 large end, outer face is connected with end cap 5 by flange arrangement, and small end outer face is connected with top cover 6.
Inner casing 2 is coaxially arranged in shell, and it comprises inner casing conical section and cervical part of esophagus, and inner casing conical section has one can coordinate the conical outer surface forming friction pair with shell cone-shaped inner surface, and the inner chamber that can hold centrifugal governor parts 4; Inner casing cervical part of esophagus stretches in the tubular structure of shell 1, be provided with the disk spring 7 of some coaxial packages on inner casing cervical part of esophagus in the toroidal cavity formed between inner casing cervical part of esophagus and shell small end, and inner casing cervical part of esophagus is threaded and can moves axially along inner casing the copper nut 8 compressing disk spring 7 foremost;
Gear wheel shaft 3 is a stepped axis body coaxially arranged with inside and outside shell, its be divided into successively be vertically positioned at gear segment outside end cap, by be positioned at end cap central mounting hole rear support section, for installing the eccentric unit construction section of centrifugal governor parts 4 and embedding the front support section at inner casing conical section center.
Centrifugal governor parts 4, it mainly comprises a centrifugal block be arranged on gear wheel shaft, and a centrifugal-block between inner casing and centrifugal block, centrifugal block is provided with making leaf spring centrifugal-block being pressed to centrifugal block.
Its safe anti-falling principle is:
Elevator normal operating condition, the gear segment of gear wheel shaft engages with the tooth bar of elevator, and rotate thereupon, when elevator runs downwards in command speed, gear wheel shaft drives centrifugal governor parts normally to rotate, the centrifugal-block of centrifugal governor parts cannot overcome the elastic deformation power of making leaf spring, therefore under the effect of making leaf spring, is close to centrifugal block;
Elevator overload operation state, when elevator downstream rate exceedes command speed, because gear wheel shaft drives centrifugal governor parts at high speeds to rotate, centrifugal-block is made to produce the centnifugal force enough overcoming making leaf spring elastic deformation power, and then centrifugal-block is pressed to inner casing, inner casing is rotated thereupon, and then the copper nut mobile compression disk spring vertically on drive inner casing, the conical outer surface of inner casing is pulled to the cone-shaped inner surface of shell, the friction pair that both utilizations form forms lock torque, realizes anti-fall autobrake.
Said structure operationally, gear wheel shaft is in slew mode always, thereafter cliding friction is between supporting section and end cap and between front support section and inner casing, need to guarantee gear wheel shaft and good lubrication between the two, otherwise very easily cause stuck or component wear inefficacy, wherein, the lubrication between later supporting section and end cap 5 is particularly important again.
In the present embodiment, the first rolling bearing 9 is set between gear wheel shaft 3 rear support section and end cap 5, the second rolling bearing 10 is set between gear wheel shaft 3 front support section and inner casing 2.Simultaneously, employing dual lubrication mechanism, be specially: as shown in Figure 2, one annular oil groove 91 is also provided with at the inside face of the first rolling bearing 9, and be drilled with one for the oil duct of later stage oiling at the central shaft hole inwall of end cap 5, the inner of this oil duct is communicated with annular oil groove 91, and outer end extends to end cap 5 outside face.Certainly, annular oil groove here also can be more than twice or twice, specifically carries out selection design according to demand.Meanwhile, can arrange along the first rolling bearing circumferencial direction when annular oil groove is arranged, namely be positioned at the plane perpendicular to the first rolling bearing, also can be positioned at and favour the plane that first rolls bearing axis.
As the present embodiment technical scheme more specifically: if the thinner thickness of end cap, the oil duct of through end cap central axis hole and outside face directly cannot be set on end cap; As shown in Figure 3, can at the central shaft hole place end face of end cap 5, namely gear wheel shaft support end slope bores an internal oil channel hole 51 be communicated with central shaft hole inwall, bore an outer oil hole can installing oil nozzle 52 in the flange portion of end cap 5, arrange between this internal oil channel hole 51 with outer oil hole one be communicated with both oiling tube 53.
It will be understood by those skilled in the art that the anti-falling safety device structure of the present embodiment is only exemplary, is not circumscribed, and the technical solution of the utility model can be applicable to various anti-falling safety device structure.
Roll the lubricating grease leakage in bearing oil groove in order to avoid first, the support central shaft hole both ends of the surface of end cap are provided with stepped hole, in the annular chamber that this stepped hole and gear wheel shaft are formed, be inlaid with the oil sealing 11 being positioned at the first rolling bearing both sides.
embodiment two
in the present embodiment, first rolls bearing inner surface is also provided with oil groove for oil storage, and itself and embodiment one difference are: as shown in Figure 4, and in the present embodiment, oil groove is roll bearing axle to the spiral channel-shaped extended along first.
certainly, in the present embodiment, the quantity of oil groove can be too together or more than.
Claims (6)
1. an oil storage type anti-falling safety device, mainly comprises shell, inner casing, gear wheel shaft, centrifugal governor parts, end cap, top cover;
Shell is the reducing type housing that inblock cast is shaped, and shell large end outer face is connected with end cap by flange arrangement, and small end outer face is connected with top cover, and inner casing is coaxially arranged in shell;
Gear wheel shaft is a stepped axis body coaxially arranged with inside and outside shell, its be divided into successively be vertically positioned at gear segment outside end cap, by be positioned at end cap central mounting hole rear support section, for installing the eccentric unit construction section of centrifugal governor parts and embedding the front support section at inner casing center;
It is characterized in that: between described gear wheel shaft rear support section and end cap, the first rolling bearing is set, the second rolling bearing is set between gear wheel shaft front support section and inner casing; And be also provided with at least one oil groove at the inside face of the first rolling bearing.
2. oil storage type anti-falling safety device according to claim 1, is characterized in that: described oil groove is annular oil groove.
3. oil storage type anti-falling safety device according to claim 1, is characterized in that: described oil groove is roll bearing axle to the spiral channel-shaped extended along first.
4. oil storage type anti-falling safety device according to claim 1, is characterized in that: the central shaft hole both ends of the surface of described end cap are provided with stepped hole, in the annular chamber that this stepped hole and gear wheel shaft are formed, be inlaid with the oil sealing being positioned at the first rolling bearing both sides.
5. oil storage type anti-falling safety device according to claim 1, is characterized in that: the central shaft hole inwall of described end cap is drilled with one for the oil duct of later stage oiling, and the inner of this oil duct is communicated with oil groove, and outer end extends to external face.
6. oil storage type anti-falling safety device according to claim 1, it is characterized in that: the end slope at the central shaft hole place of described end cap bores an internal oil channel hole be communicated with central shaft hole inwall, bore an outer oil hole can installing oil nozzle at the outside face of end cap, arrange between this internal oil channel hole with outer oil hole one be communicated with both oiling tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246338.5U CN204689298U (en) | 2015-04-22 | 2015-04-22 | A kind of oil storage type anti-falling safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520246338.5U CN204689298U (en) | 2015-04-22 | 2015-04-22 | A kind of oil storage type anti-falling safety device |
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| Publication Number | Publication Date |
|---|---|
| CN204689298U true CN204689298U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520246338.5U Expired - Fee Related CN204689298U (en) | 2015-04-22 | 2015-04-22 | A kind of oil storage type anti-falling safety device |
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| CN (1) | CN204689298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773629A (en) * | 2015-04-22 | 2015-07-15 | 江苏三上机电制造股份有限公司 | Oil storage type anti-falling safety device |
-
2015
- 2015-04-22 CN CN201520246338.5U patent/CN204689298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104773629A (en) * | 2015-04-22 | 2015-07-15 | 江苏三上机电制造股份有限公司 | Oil storage type anti-falling safety device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20180422 |